/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hugegraph.store.node.grpc.query.stages;

import org.apache.hugegraph.store.node.grpc.query.QueryStage;
import org.apache.hugegraph.store.node.grpc.query.model.PipelineResult;

/**
 * Special stage for sample = 0
 */
public class StopStage implements QueryStage {

    @Override
    public PipelineResult handle(PipelineResult result) {
        if (result.isEmpty()) {
            return result;
        }
        return null;
    }

    @Override
    public String getName() {
        return "STOP_STAGE";
    }
}
